[cisco-voip] CallManager trunks - removing prefix digits

[Avner Izhar]

Hi,

It can be solved by using an inbound translation pattern, applied to the trunk's CSS.

You can get rid of the extra 0 by using a mask.

HTH
-------------------------------------------
thanks,
Avner Izhar
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-----Original Message-----
From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of MILLS, Mark
Sent: Monday, January 21, 2008 14:59
To: Cisco Voice
Subject: [cisco-voip] CallManager trunks - removing prefix digits

Hi,

We have two two callmanager clusters (CCM4 and CCM6), both are
configured to with the "Incoming Calling Party National Number Prefix"
setting to add a leading 0, and both have individual connections to the
PSTN and the users on each require 0 to get an outside line.

I have a requirement for a DN reachable via the CCM4 PSTN link to exist
on the CCM6 installation.    To do this, I have setup a trunk between
the two CallManager systems and routed the one particular DN from CCM4
to CCM6 over the trunk.  This is all working fine.

The problem is that since outside call passes thru both CallManagers,
the leading 0 gets added twice when coming from the PSTN.  IE, if I call
the DN from an external number, it comes in as 00xxxxxxxxxx, not just
0xxxxxxxxxx

Somehow I need to avoid adding the extra leading 0 for these calls over
the trunk.  Unfortunately I cannot just remove the setting from the
services parameter since its needed for the other PSTN gateways
configured on the CallManagers.

Does anyone have any suggestions on how I can do this?

Thanks,
   Mark
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